const http = require('http')


const server = http.createServer((req, res) => {
    res.setHeader('Content-Type', 'text/plain');
    res.end([1, 2, 3]);
    console.log('11111')
  });
  
  server.listen(3000, () => {
    console.log('Server is running on http://localhost:3000');
  });